You MUST be using Google Chrome or Safari browser.
1. Login: http://edu.appfurnace.com
email address is your school email. Your password will be told to you in the lesson.
Tutorials to get you started:
Tutorial 1 – Hello World
Tutorial 2 – Changing Pages
Tutorial 3 – Using Files
Screen sizes – Click on Preview online. Choose iOS or Android and check screen sizes. When you upload an image (tutorial 3) bear in mind these dimensions.
If you add a map, you can have it show your current location with longitude and latitude – see http://www.pauldjohnson.co.uk/content/uk-postcode-geocoder-returning-latitude-longitude-and-plots-map
How to add markers to a map (and use the code tool)
Making phone call or email: help here